VMM/Config: moved Config.sections() to class LazyConfig.
No longer import the ENCODING from VirtualMailManager, it's no longer required
in the Config module.
Config
cfs - configset sect.opt val
cfg - configget sect.opt
ds - domainservices: smtp pop imap sieve???
- Aliases
- avoid looping aliases
- Domain
- optional limits for number of:
+ accounts
+ aliases
+ destinations/alias
+ alias domains